ᐅ New single-family house construction with a basement and external basement entrance
Created on: 16 Mar 2025 20:56
T
theking1102
Hello,
we are planning a new build with a general contractor.
The house will be constructed using conventional, single-layer masonry with porous bricks—so a solid structure.
The general contractor also planned the basement. It consists of a waterproof (WU) basement with perimeter insulation.
Since we have a slight slope on the site, we considered having a basement apartment. Although we could install windows there, a separate entrance seems to be problematic.
The basement access would not have natural drainage and would need to be connected to the sewer system with a backflow prevention valve.
The general contractor strongly advised against doing this. (He can design it that way in principle, but we will see that we cannot actually build it like that.)
The soil survey indicates hydrostatic water pressure and requires sealing up to the ground level.
I would like to know if it is really impossible to create a separate basement entrance when there is hydrostatic water pressure?
we are planning a new build with a general contractor.
The house will be constructed using conventional, single-layer masonry with porous bricks—so a solid structure.
The general contractor also planned the basement. It consists of a waterproof (WU) basement with perimeter insulation.
Since we have a slight slope on the site, we considered having a basement apartment. Although we could install windows there, a separate entrance seems to be problematic.
The basement access would not have natural drainage and would need to be connected to the sewer system with a backflow prevention valve.
The general contractor strongly advised against doing this. (He can design it that way in principle, but we will see that we cannot actually build it like that.)
The soil survey indicates hydrostatic water pressure and requires sealing up to the ground level.
I would like to know if it is really impossible to create a separate basement entrance when there is hydrostatic water pressure?
A
Allthewayup16 Mar 2025 22:43Wasn’t there something about a dam in South America related to TÜV Süd?
Contact an engineering firm that specializes in construction supervision, and don’t skimp on hiring an expert.
Have your vehicles inspected by TÜV and your house construction checked by a structural engineer or similar professional. This does not necessarily mean that all TÜV inspectors are career changers from evening classes, but the proportion of such individuals there is high. That is why construction companies sometimes take TÜV inspectors only semi-seriously.
Contact an engineering firm that specializes in construction supervision, and don’t skimp on hiring an expert.
Have your vehicles inspected by TÜV and your house construction checked by a structural engineer or similar professional. This does not necessarily mean that all TÜV inspectors are career changers from evening classes, but the proportion of such individuals there is high. That is why construction companies sometimes take TÜV inspectors only semi-seriously.
theking1102 schrieb:
we are planning a new build with a general contractor. You probably mean until today. Because tomorrow you’ll pull the plug, hopefully nothing has been signed yet (if so, see a lawyer first).
The reality TV fees won’t cover the expensive costs,
1. the loan repayments for the construction shell,
2. the rent for your temporary accommodation, and
3. the tenant’s housing costs.
A hopefully-maybe unfinished basement at the subcontractor’s discretion… I have no further questions. Run away as fast as you can!
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